Cremona's table of elliptic curves

Curve 91728r1

91728 = 24 · 32 · 72 · 13



Data for elliptic curve 91728r1

Field Data Notes
Atkin-Lehner 2+ 3- 7+ 13+ Signs for the Atkin-Lehner involutions
Class 91728r Isogeny class
Conductor 91728 Conductor
∏ cp 6 Product of Tamagawa factors cp
deg 483840 Modular degree for the optimal curve
Δ 1920459886594704 = 24 · 36 · 78 · 134 Discriminant
Eigenvalues 2+ 3- -3 7+ -1 13+  5  3 Hecke eigenvalues for primes up to 20
Equation [0,0,0,-31899,-602651] [a1,a2,a3,a4,a6]
j 53385472/28561 j-invariant
L 2.2794858992952 L(r)(E,1)/r!
Ω 0.37991431121275 Real period
R 1 Regulator
r 0 Rank of the group of rational points
S 1 (Analytic) order of Ш
t 1 Number of elements in the torsion subgroup
Twists 45864bj1 10192a1 91728bt1 Quadratic twists by: -4 -3 -7


Data from Elliptic Curve Data by J. E. Cremona.
Design inspired by The Modular Forms Explorer by William Stein.

Part of Computational Number Theory
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